// https://syzkaller.appspot.com/bug?id=5388824c1e18a045263859c865be0409bc5459bf
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/prctl.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

#ifndef __NR_ioctl
#define __NR_ioctl 29
#endif
#ifndef __NR_mmap
#define __NR_mmap 222
#endif
#ifndef __NR_sendmsg
#define __NR_sendmsg 211
#endif
#ifndef __NR_socket
#define __NR_socket 198
#endif
#ifndef __NR_socketpair
#define __NR_socketpair 199
#endif

static void sleep_ms(uint64_t ms)
{
  usleep(ms * 1000);
}

static uint64_t current_time_ms(void)
{
  struct timespec ts;
  if (clock_gettime(CLOCK_MONOTONIC, &ts))
    exit(1);
  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}

#define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len)               \
  *(type*)(addr) =                                                             \
      htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) |           \
            (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))

static bool write_file(const char* file, const char* what, ...)
{
  char buf[1024];
  va_list args;
  va_start(args, what);
  vsnprintf(buf, sizeof(buf), what, args);
  va_end(args);
  buf[sizeof(buf) - 1] = 0;
  int len = strlen(buf);
  int fd = open(file, O_WRONLY | O_CLOEXEC);
  if (fd == -1)
    return false;
  if (write(fd, buf, len) != len) {
    int err = errno;
    close(fd);
    errno = err;
    return false;
  }
  close(fd);
  return true;
}

static void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  for (int i = 0; i < 100; i++) {
    if (waitpid(-1, status, WNOHANG | __WALL) == pid)
      return;
    usleep(1000);
  }
  DIR* dir = opendir("/sys/fs/fuse/connections");
  if (dir) {
    for (;;) {
      struct dirent* ent = readdir(dir);
      if (!ent)
        break;
      if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0)
        continue;
      char abort[300];
      snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort",
               ent->d_name);
      int fd = open(abort, O_WRONLY);
      if (fd == -1) {
        continue;
      }
      if (write(fd, abort, 1) < 0) {
      }
      close(fd);
    }
    closedir(dir);
  } else {
  }
  while (waitpid(-1, status, __WALL) != pid) {
  }
}

static void setup_test()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  write_file("/proc/self/oom_score_adj", "1000");
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      setup_test();
      execute_one();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      sleep_ms(1);
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  *(uint64_t*)0x200000c0 = 0;
  *(uint32_t*)0x200000c8 = 0;
  *(uint64_t*)0x200000d0 = 0x20000080;
  *(uint64_t*)0x20000080 = 0x20000280;
  *(uint32_t*)0x20000280 = 0x1c4;
  *(uint16_t*)0x20000284 = 0x31;
  *(uint16_t*)0x20000286 = 0x100;
  *(uint32_t*)0x20000288 = 0x70bd27;
  *(uint32_t*)0x2000028c = 0x25dfdbfb;
  *(uint8_t*)0x20000290 = 0;
  *(uint8_t*)0x20000291 = 0;
  *(uint16_t*)0x20000292 = 0;
  *(uint16_t*)0x20000294 = 0x20;
  *(uint16_t*)0x20000296 = 1;
  *(uint16_t*)0x20000298 = 0x10;
  STORE_BY_BITMASK(uint16_t, , 0x2000029a, 0x14, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000029b, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000029b, 0, 7, 1);
  *(uint16_t*)0x2000029c = 9;
  *(uint16_t*)0x2000029e = 1;
  memcpy((void*)0x200002a0, "csum\000", 5);
  *(uint16_t*)0x200002a8 = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x200002aa, 2, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200002ab, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200002ab, 0, 7, 1);
  *(uint16_t*)0x200002ac = 8;
  *(uint16_t*)0x200002ae = 1;
  memcpy((void*)0x200002b0, "ipt\000", 4);
  *(uint16_t*)0x200002b4 = 0x18;
  *(uint16_t*)0x200002b6 = 1;
  *(uint16_t*)0x200002b8 = 0x14;
  STORE_BY_BITMASK(uint16_t, , 0x200002ba, 0, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200002bb, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200002bb, 0, 7, 1);
  *(uint16_t*)0x200002bc = 0xd;
  *(uint16_t*)0x200002be = 1;
  memcpy((void*)0x200002c0, "connmark\000", 9);
  *(uint16_t*)0x200002cc = 0x30;
  *(uint16_t*)0x200002ce = 1;
  *(uint16_t*)0x200002d0 = 0x10;
  STORE_BY_BITMASK(uint16_t, , 0x200002d2, 0x1b, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200002d3, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200002d3, 0, 7, 1);
  *(uint16_t*)0x200002d4 = 0xb;
  *(uint16_t*)0x200002d6 = 1;
  memcpy((void*)0x200002d8, "skbmod\000", 7);
  *(uint16_t*)0x200002e0 = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x200002e2, 0x14, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200002e3, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200002e3, 0, 7, 1);
  *(uint16_t*)0x200002e4 = 8;
  *(uint16_t*)0x200002e6 = 3;
  *(uint32_t*)0x200002e8 = 8;
  *(uint16_t*)0x200002ec = 0x10;
  STORE_BY_BITMASK(uint16_t, , 0x200002ee, 2, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200002ef, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200002ef, 0, 7, 1);
  *(uint16_t*)0x200002f0 = 9;
  *(uint16_t*)0x200002f2 = 1;
  memcpy((void*)0x200002f4, "csum\000", 5);
  *(uint16_t*)0x200002fc = 0x38;
  *(uint16_t*)0x200002fe = 1;
  *(uint16_t*)0x20000300 = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x20000302, 0x12, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x20000303, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x20000303, 0, 7, 1);
  *(uint16_t*)0x20000304 = 8;
  *(uint16_t*)0x20000306 = 3;
  *(uint32_t*)0x20000308 = 8;
  *(uint16_t*)0x2000030c = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x2000030e, 0, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000030f, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000030f, 0, 7, 1);
  *(uint16_t*)0x20000310 = 8;
  *(uint16_t*)0x20000312 = 3;
  *(uint32_t*)0x20000314 = 0x7fff;
  *(uint16_t*)0x20000318 = 0x10;
  STORE_BY_BITMASK(uint16_t, , 0x2000031a, 0x10, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000031b, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000031b, 0, 7, 1);
  *(uint16_t*)0x2000031c = 9;
  *(uint16_t*)0x2000031e = 1;
  memcpy((void*)0x20000320, "gact\000", 5);
  *(uint16_t*)0x20000328 = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x2000032a, 0xd, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000032b, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000032b, 0, 7, 1);
  *(uint16_t*)0x2000032c = 8;
  *(uint16_t*)0x2000032e = 3;
  *(uint32_t*)0x20000330 = 0x800;
  *(uint16_t*)0x20000334 = 0x84;
  *(uint16_t*)0x20000336 = 1;
  *(uint16_t*)0x20000338 = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x2000033a, 4, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000033b, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000033b, 0, 7, 1);
  *(uint16_t*)0x2000033c = 8;
  *(uint16_t*)0x2000033e = 3;
  *(uint32_t*)0x20000340 = 1;
  *(uint16_t*)0x20000344 = 0x10;
  STORE_BY_BITMASK(uint16_t, , 0x20000346, 1, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x20000347, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x20000347, 0, 7, 1);
  *(uint16_t*)0x20000348 = 0xb;
  *(uint16_t*)0x2000034a = 1;
  memcpy((void*)0x2000034c, "sample\000", 7);
  *(uint16_t*)0x20000354 = 0x14;
  STORE_BY_BITMASK(uint16_t, , 0x20000356, 0x1e, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x20000357, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x20000357, 0, 7, 1);
  *(uint16_t*)0x20000358 = 0xd;
  *(uint16_t*)0x2000035a = 1;
  memcpy((void*)0x2000035c, "connmark\000", 9);
  *(uint16_t*)0x20000368 = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x2000036a, 0xa, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000036b, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000036b, 0, 7, 1);
  *(uint16_t*)0x2000036c = 8;
  *(uint16_t*)0x2000036e = 3;
  *(uint32_t*)0x20000370 = 0x80000000;
  *(uint16_t*)0x20000374 = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x20000376, 0x12, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x20000377, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x20000377, 0, 7, 1);
  *(uint16_t*)0x20000378 = 8;
  *(uint16_t*)0x2000037a = 3;
  *(uint32_t*)0x2000037c = 0x7f;
  *(uint16_t*)0x20000380 = 0x10;
  STORE_BY_BITMASK(uint16_t, , 0x20000382, 9, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x20000383, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x20000383, 0, 7, 1);
  *(uint16_t*)0x20000384 = 0xb;
  *(uint16_t*)0x20000386 = 1;
  memcpy((void*)0x20000388, "police\000", 7);
  *(uint16_t*)0x20000390 = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x20000392, 0, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x20000393, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x20000393, 0, 7, 1);
  *(uint16_t*)0x20000394 = 8;
  *(uint16_t*)0x20000396 = 3;
  *(uint32_t*)0x20000398 = 0x8dc7;
  *(uint16_t*)0x2000039c = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x2000039e, 0x13, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000039f, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000039f, 0, 7, 1);
  *(uint16_t*)0x200003a0 = 8;
  *(uint16_t*)0x200003a2 = 1;
  memcpy((void*)0x200003a4, "ipt\000", 4);
  *(uint16_t*)0x200003a8 = 0x10;
  STORE_BY_BITMASK(uint16_t, , 0x200003aa, 0x17, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200003ab, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200003ab, 0, 7, 1);
  *(uint16_t*)0x200003ac = 9;
  *(uint16_t*)0x200003ae = 1;
  memcpy((void*)0x200003b0, "gact\000", 5);
  *(uint16_t*)0x200003b8 = 0x54;
  *(uint16_t*)0x200003ba = 1;
  *(uint16_t*)0x200003bc = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x200003be, 0xc, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200003bf, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200003bf, 0, 7, 1);
  *(uint16_t*)0x200003c0 = 8;
  *(uint16_t*)0x200003c2 = 3;
  *(uint32_t*)0x200003c4 = 0x4a0e;
  *(uint16_t*)0x200003c8 = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x200003ca, 5, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200003cb, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200003cb, 0, 7, 1);
  *(uint16_t*)0x200003cc = 8;
  *(uint16_t*)0x200003ce = 3;
  *(uint32_t*)0x200003d0 = 0x1f;
  *(uint16_t*)0x200003d4 = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x200003d6, 0x17, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200003d7, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200003d7, 0, 7, 1);
  *(uint16_t*)0x200003d8 = 8;
  *(uint16_t*)0x200003da = 3;
  *(uint32_t*)0x200003dc = 0xffffff20;
  *(uint16_t*)0x200003e0 = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x200003e2, 0x13, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200003e3, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200003e3, 0, 7, 1);
  *(uint16_t*)0x200003e4 = 8;
  *(uint16_t*)0x200003e6 = 1;
  memcpy((void*)0x200003e8, "ipt\000", 4);
  *(uint16_t*)0x200003ec = 0x10;
  STORE_BY_BITMASK(uint16_t, , 0x200003ee, 6, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200003ef, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200003ef, 0, 7, 1);
  *(uint16_t*)0x200003f0 = 0xb;
  *(uint16_t*)0x200003f2 = 1;
  memcpy((void*)0x200003f4, "sample\000", 7);
  *(uint16_t*)0x200003fc = 0x10;
  STORE_BY_BITMASK(uint16_t, , 0x200003fe, 0x18, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x200003ff, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x200003ff, 0, 7, 1);
  *(uint16_t*)0x20000400 = 0xb;
  *(uint16_t*)0x20000402 = 1;
  memcpy((void*)0x20000404, "mirred\000", 7);
  *(uint16_t*)0x2000040c = 0x38;
  *(uint16_t*)0x2000040e = 1;
  *(uint16_t*)0x20000410 = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x20000412, 0x1b, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x20000413, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x20000413, 0, 7, 1);
  *(uint16_t*)0x20000414 = 8;
  *(uint16_t*)0x20000416 = 3;
  *(uint32_t*)0x20000418 = 0;
  *(uint16_t*)0x2000041c = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x2000041e, 9, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000041f, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000041f, 0, 7, 1);
  *(uint16_t*)0x20000420 = 8;
  *(uint16_t*)0x20000422 = 3;
  *(uint32_t*)0x20000424 = 2;
  *(uint16_t*)0x20000428 = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x2000042a, 2, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000042b, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000042b, 0, 7, 1);
  *(uint16_t*)0x2000042c = 8;
  *(uint16_t*)0x2000042e = 1;
  memcpy((void*)0x20000430, "bpf\000", 4);
  *(uint16_t*)0x20000434 = 0x10;
  STORE_BY_BITMASK(uint16_t, , 0x20000436, 0x10, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x20000437, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x20000437, 0, 7, 1);
  *(uint16_t*)0x20000438 = 0xa;
  *(uint16_t*)0x2000043a = 1;
  memcpy((void*)0x2000043c, "pedit\000", 6);
  *(uint64_t*)0x20000088 = 0x1c4;
  *(uint64_t*)0x200000d8 = 1;
  *(uint64_t*)0x200000e0 = 0;
  *(uint64_t*)0x200000e8 = 0;
  *(uint32_t*)0x200000f0 = 0x44040;
  syscall(__NR_sendmsg, /*fd=*/-1, /*msg=*/0x200000c0ul, /*f=*/0x8010ul);
  res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0);
  if (res != -1)
    r[0] = res;
  res = syscall(__NR_socketpair, /*domain=*/1ul, /*type=*/1ul, /*proto=*/0,
                /*fds=*/0x20000080ul);
  if (res != -1)
    r[1] = *(uint32_t*)0x20000084;
  memcpy((void*)0x20000000,
         "lo\000\000\000\000\000\000\000\000\000\000\000\000\000\000", 16);
  res = syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0x8933, /*arg=*/0x20000000ul);
  if (res != -1)
    r[2] = *(uint32_t*)0x20000010;
  *(uint64_t*)0x20000000 = 0;
  *(uint32_t*)0x20000008 = 0;
  *(uint64_t*)0x20000010 = 0x20000780;
  *(uint64_t*)0x20000780 = 0x200002c0;
  memcpy((void*)0x200002c0,
         "\x78\x00\x00\x00\x24\x00\x0b\x0f\x00\x00\x00\x00\x00\x00\x00\x00\x60"
         "\x00\x00\x00",
         20);
  *(uint32_t*)0x200002d4 = r[2];
  memcpy((void*)0x200002d8,
         "\x00\x00\x00\x00\xff\xff\xff\xff\x00\x00\x00\x00\x0a\x00\x01\x00\x6e"
         "\x65\x74\x65\x6d\x00\x04\x00\x48\x00\x02\x00\x00\x00\x00\x00\x86\x00"
         "\x02\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\xff\xff\xff\xff",
         50);
  *(uint64_t*)0x20000788 = 0x78;
  *(uint64_t*)0x20000018 = 1;
  *(uint64_t*)0x20000020 = 0;
  *(uint64_t*)0x20000028 = 0;
  *(uint32_t*)0x20000030 = 0;
  syscall(__NR_sendmsg, /*fd=*/r[0], /*msg=*/0x20000000ul, /*f=*/0ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=*/7ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul);
  loop();
  return 0;
}